TransCanada says it has submitted a proposal for a new route through Nebraska for the disputed Keystone XL oil pipeline.

The company said in a statement Wednesday that it has submitted a planned route for the pipeline to Nebraska officials. The state has become a focus of concern for the 1,700-mile pipeline, which would carry oil from Canada to the Texas Gulf Coast. President Barack Obama blocked the pipeline earlier this year, citing uncertainty over a planned route intended to avoid Nebraska's environmentally sensitive Sandhills region.

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Details of the new route were not immediately available. A spokeswoman for the State Department said officials had not received notification of a new route. State Department approval is need because the $7 billion pipeline crosses a U.S. border.